Boat tilting device



p 0, 1957 T. .1. JESTER 2,805,782

BOAT TILTING DEVICE Filed March 28, 1955 2 Sheets-Sheet l 9 Fig.3

Thomas J. Jester INVENTOR.

BY WWW 3M Sept 10, 1957 T. J. JESTER 2,805,782

BOAT TILTING DEVICE Filed March 28, 1955 2 Sheets-Sheet 2 Fig. 2 55 Fig. 4

- Thomas J. Jester- 34 36 INVENTOR;

I o 5 38 BY States atent BOAT TILTING DEVICE Thomas J. Jester, Silver Lake,'Wis.

Application March 28, 1955, Serial No. 497,208

2 Claims. (Cl. 214--1) This invention generally relates to a boat tilting device and more specifically provides a device for raising and tilting a boat for dumping the water therefrom and also presenting the boat in a readily accessible position for repair and the like.

An object of the present invention is to provide a boat tilting device that is primarily adapted for use in conjunction with fishing boats for lifting the fishing boats from a horizontal position in the water to a substantially vertical position so that water in the bottom of the boat may be easily dumped and the boats may then be easily washed, cleaned, repaired or repainted.

Another object of the present invention is to provide a boat tilting device which may be attached to any suitable pier whether it be stationary or floating and is actuated by fluid pressure for raising and lowering the boat.

Still another important feature of the present invention is the provision of a boat tilting device that is simple in construction, easy to operate, well adapted for its intended purposes and relatively inexpensive to manufacture.

These together with other objects and advantages which will become subsequently apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout, and in which:

Figure 1 is a side elevational view of the boat tilting device of the present invention showing the two positions of the boat and the elements of the boat tilting device;

Figure 2 is a top plan View of the boat tilting device;

Figure 3 is a diagrammatic view of the control mechanism for raising and lowering the boat; and

Figure 4 is a transverse, sectional view taken substantially upon a plane passing along section line 4-4 of Figure 2 showing the inverted channel shape of the horizontally extending arms for position under the boat and raising the same.

Referring now to the drawings in detail, it will be seen that the numeral generally designates the boat tilting device of the present invention which may be attached to a suitable pier 12 which is partially submerged and may be of the floating type wherein the water level is indicated by the numeral 14 and is adjacent the surface of the pier 12.

The boat tilting device 10 generally includes a plurality of aligned brackets 16 attached to the upper surface of the pier 12 by fastening bolts 18 and provided on its outer end with a loop 20 forming a bearing for an elongated rod 22. At one edge of the pier 12 is provided an elongated horizontal rigid arm member 24 having a bracket 26 attached thereto having an upstanding lug 28 pivotally supporting the end of the elongated rod 22.

Rigidly secured to the rod 22 is a pair of movable arms generally designated by the numeral 30 with each arm 30 including a vertical portion 32 and a horizontal portion 34 rigidly attached to the lower end of the vertical portion 32. The vertical portion 32 is rigidly attached to the elongated rod 22 for movement therewith. The horizontal portion 34 of the arms 30 is provided with a central web portion 36 having depending flanges 38 thereon thereby forming an inverted channel-shaped horizontal portion 34. It will be seen that the horizontal portions 34 are positioned below the water level 14 so that a boat 40 may be positioned thereover for raising and tilting as illustrated in Figure 1. The elongated rigid arm 24 extends outwardly substantially in the same plane as the upper surface of the pier 12, and is provided with and upstanding member 42 having a brace 43. Also, the elongated rod 22 is provided with a rigid upstanding arm or member 44 in alignment with and substantially parallel to the upstanding member 42, and the upper ends of the members 42 and 44 are interconnected by a fluid pressure actuated piston and cylinder arrangement generally designated by the numeral 46 and includes a cylinder 48 pivotally connected to the upper end of the member 42 by a pivot pin 50. The piston rod 52 extending from the cylinder 48 is attached by pivot pin 54 to the upper end of the upstanding member 44. A flexible fluid pressure or air pressure conduit 56 is connected to the outer end of the cylinder 48 and extends alongside the upstanding member 42 and the outwardly extending rigid arm 24 and is attached thereto by suitable brackets 58. The fluid conduit 56 then progresses to a point alongside the vertical post 60 mounted on the pier 12 wherein the post 60 is provided with a control box 62 at the upper end thereof having a control valve 64 and a pressure gauge 66 therein together with a conduit 68 connected to an air supply tank 70 whereby the control valve 64 may be utilized for controlling the expansion and retraction of the piston and cylinder arrangement 46 thereby pivoting the rod 22 and the arms 30 about the horizontal axis formed by the rod 22, thereby raising the boat 4! upwardly and tilting the same inwardly until it rests against the stop post 64, as illustrated in Figure 1,

thereby permitting water in the boat to be dumped and also permitting the bottom of the boat to be repaired, repainted, washed or facilitating any necessary operation on the boat.

Normally, the boat 49 is positioned over the arms 30 since the boat 40 will float in the water 14 and by controlling the valve 64, the boat 48 may be raised and lowered, as desired, and as specifically illustrated in Figure l as the boat and the arms 3t) progress from their full line position to their dotted line position.

The foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope of the appended claims.

What is claimed as new is as follows:

1. A boat tilting device comprising a plurality of brackets mounted on a pier, a plurality of L-shaped arms pivotally mounted on said brackets and extending outwardly from the pier below the water level whereby a boat may be floated to a position over the arms, and means for pivoting the arms upwardly thereby raising and tilting the boat, each of said arms having normally vertical and horizontal portions with the upper end of the vertical portion being pivotally attached to said brackets and engaging the side of the boat when it is tilted, a horizontal arm rigidly attached to and projecting outwardly from the pier and provided with an upstanding member at the outer end thereof, said brackets and L- shaped arms being interconnected by an elongated pivot 4 rod rigidly secured to the L-shaped arms and having an the top of the boat when in tilted position for limiting upstanding member at one end thereof in parallel Ielathe tilting movement thereof. tion to the upstanding member on the rigid arm, and an expansible and retractible fluid pressure actuated means References Cited 1n the file of this P interconnecting the upper ends of said upstanding mem- 5 UNITED STATES PATENTS hers for pivoting the rod and arms about a horizontal axis formed by the rod for raising and tilting the boat. gg g n 2 2. The comblnatlon of claim 1 wherein an upstandmg 2,453628 Hook Nov. 8 1948 post member is attached to the pier for engagement by 

